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RE: [Zope] importing an existing python module into Zope python
by Sean 29 Jan '04

29 Jan '04

Rachel, Are you a cypherpunk type? Your name sounds familiar. To answer your question: option iii.) is not such a big deal as to earn the term "rewrite" A "Zope Product" is just a python module in the Zope Products directory with some code in its "__init__.py" file that tells Zope how to add your objects from the management interface. You can define a single new Zope object that imports your existing code (as long as it is in your python path) and inherits from your existing class(es), or calls your existing functions. This wrapper class shouldn't require much code at all. Additionally, when you run zope in Development mode ("-D" from the command line), and I believe that ./start does this by default, you can set any product to auto-refresh in the management interface: Control Panel -> Products -> YourProduct -> <Refresh Tab> Click auto refresh and Update. Also the product directory may need an empty (size=0) file called "refresh.txt" for this to work. At least is does in the old version of Zope I am running. Be well. --Sean Hastings > > Message: 21 > Date: Wed, 28 Jan 2004 16:38:56 +0000 > From: Rachel Willmer <rachel_lists(a)willmer.org> > Subject: [Zope] importing an existing python module into Zope python > script? > To: zope(a)zope.org > Message-ID: <4017E5A0.9020603(a)willmer.org> > Content-Type: text/plain; charset=us-ascii; format=flowed > > This *must* be a FAQ, but I haven't found the answer anywhere despite > all day looking... > > I've got an existing python module with a large amount of code in it > which I want to use both inside Zope and outside in existing python > programs. The module is still under development so will change frequently. > > Two burning questions: > > a) How do I get access to the module within Zope ? > > b) What do I then need to do to keep the versions in sync? > > As far as I can see, I have at least 3 alternatives to question (a). > > i) Copy it all into Zope, each function as a separate Zope python script > (Ugh! and this then makes keeping it in sync outside Zope pretty darned > difficult...) > > ii) Keep the module as-is and add an External Method in Zope for each > function that will be called from a Zope script. Pretty awful but > do-able. But then I think I need to do something else in the Zope > Management Interface each time I change the module? Is that right? > > iii) Rewrite it all as a Zope Product? > > There must be an easier answer that has eluded me to date.... > > Any answers appreciated... > > Rachel

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Beginners questions
by Edward Comber 29 Jan '04

29 Jan '04

1) Is the Zope Book available in downloadable HTML form? 2) Can I (and are there reasons why I should not) get Zserver to work on Port 80. I don't want to confuse my users. 3) ZPT vs DHTML. Straight away I am confused by this, and I need to know which to focus my attention on. I get the impression that the preferred order is ZPT, DHTML Methods, DHTML Templates. I came to Zope from programming in Python, if that helps. My plan is to start with ZPT - is that correct? 4) Is here a more appropriate place to ask beginners questions? thanks, Eddie.

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webdav interface
by nwingfield＠che-llp.com 29 Jan '04

29 Jan '04

Is Zope's webdav interface documented anywhere, such that I could find the necessary methods that I must write to webdav-enable a custom class? The situation is such that my product will define a single Zope class. An application will use only one instance of this class, which will pull the strings of a relational database and a file system, rather than objects in the ZODB. The relational data dynamically defines the navigational structure of the documents stored on disk. Thus, the webdav behaviors that my class automatically inherits will not work for me, BUT I assume that if I override Zope's default webdav methods I can provide similar functionality. I essentially need to know the webdav interface, i.e. what methods Zope calls to list folder contents, retrieve a file, lock a file, etc, etc. I would be grateful even if someone would just point me to the particular file(s) where this code is implemented in Zope...

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Zope Web Serving Options?
by Sean Kelley 29 Jan '04

29 Jan '04

I have a zope 2.6.1 server running on windows 2000 and using the zope www server to run an intranet. I want to host out a public site with nearly the same software (zope,plone,etc) on windows. I need to decide what the best approach is. Do I use something like VHM and run Zope www server or should I install Apache 2 on Windows 2000? Any ideas on pros and cons of each? Performance is an issue so I would guess apache could be good for images,etc. Any other ideas on using the Zope server for a medium to low traffic public site? What about security of running public and private sites on same box?

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Re: [Zope] non-persistent publishable objects
by Karl Anderson 28 Jan '04

28 Jan '04

nwingfield(a)che-llp.com writes: > Is it possible to create *non-persistent* publishable objects with product > code? Yes. > I'm finding Zope unwilling to publish a generic Python object. The object cannot be completely generic - at the least, it needs an index_html or __str__ method to publish, and it has to satisfy security before it can be traversed to. Parsed XML does this, with a persistent head object, a persistent single XML object, and transient wrapped node objects that are created on the fly, and published with full ZMI access. -- Karl Anderson kra(a)monkey.org http://monkey.org/~kra/

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recover from POSKeyError after corruption by pack()ing bug
by Dominik Schäfer 28 Jan '04

28 Jan '04

Hi! I have a serious problem: I think about a week ago my database was damaged by this nasty pack()ing bug. Unfortunately this error was not noticeable until my zope restart yesterday. :-( The consequence is a POSKeyError (POSKeyError: 0000000000000009) which prevents zope from starting. I tried to repair the database with fsrecover.py (from zope-2.6.3 and zope-2.6.4rc1), and it deleted some invalid transactions but it did not solve the problem. Then I tried the instructions on http://www.zopelabs.com/cookbook/1054240694, but had no success at all because I got again a POSKeyError. *g* I used fsrefs.py on the Data.fs and the first 2 error it found was: --- cut here --- oid 0x4 AccessControl.User.UserFolder last updated: 2004-01-16 14:08:02.781121, tid=0x3526BB00BDDB9CCL refers to invalid object: oid 0x9 missing: 'Persistence.PersistentMapping' oid 0xf17 AccessControl.User.UserFolder last updated: 2004-01-16 14:08:14.036884, tid=0x3526BB03BE40544L refers to invalid object: oid 0x1162 missing: 'Persistence.PersistentMapping' --- cut here --- After these 2 errors follow about 24Kb of errors or references to missing objects or objects that could not be loaded. It seems to me, that some very basic objects were destroyed a week ago. Of course all backups during the last week contain the damaged database. :-( It is really a pity, that the consequences of this database damage shows not up until the next zope restart... Is there any possibility to recover the database or to "extract" the transactions of the last 8 days and to prevent the complete loss of data in that time? Has anybody an idea, which I could try? Bye, Dominik P.S. I hope I got the suitable mailing list, I was uncertain if zope.general or zope.zobd fits better...

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Revisionmanager Bugs for Win!?
by Sebastian Krollmann 28 Jan '04

28 Jan '04

Hi Phillip, trying to get RevisionManager 1.3.2 running on my Zope2.7/WinXP(ActivePython 2.3.2) I get some problems: 1. the "/tmp/RevisionManager-" + module.filename path cannot be created with os.mkdir(import_dir) on Windows as its a dir/subdir in importModule I think the easiest solution is just make one dir out of the two. The following change works on my machine. (or maybe use os.makedirs()) -- snip #import_dir = "/tmp/RevisionManager-" + module.filename import_dir = os.path.join(INSTANCE_HOME, 'Temp_RevisionManager-%s' % module.filename) #my patch os.mkdir(import_dir) -- snip 2. I got some problems with missing bobobase_modification_time attribute in writeToFS for some object instances: So I did the following quick-hack without a deep look in writeToFS, which worked for me: -- snip obj_last_modified = 0.0 if hasattr(obj, 'bobobase_modification_time'): obj_last_modified = float(obj.bobobase_modification_time().timeTime()) -- snip 3. I get conflicts with the following method in another Product: FileSystemSite.FSPythonScript.FSPythonScript.document_src() in _get_source: if hasattr(obj, 'document_src'): result = mapply(obj.document_src, keyword=kw) I guess its a nameconflict, but I didn't have the time to look to it much closer. The following error message is thrown: Error Type: AttributeError Error Value: _source Error error_tb: Traceback (innermost last): * Module ZPublisher.Publish, line 98, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 39, in call_object * Module Products.RevisionManager.RevisionManager, line 1476, in rm_import * Module Products.RevisionManager.RevisionManager, line 685, in importModule * Module Products.RevisionManager.RevisionManager, line 1190, in writeToFS * Module Products.RevisionManager.RevisionManager, line 246, in _get_source * Module ZPublisher.mapply, line 89, in mapply * Module Products.FileSystemSite.FSPythonScript, line 152, in document_src AttributeError: _source It seems that RevisionManager could help for the cvs-problem of Zope's ZODB objects. So if I could use it in my environment it would be great. Anyway thanks for your effords. Sebastian Krollmann

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Re: zope DB
by John Maxwell 28 Jan '04

28 Jan '04

>> My zope database is getting larger and close to 2GB, i want to figure >> out a way to handle it. First i want to find out how much space each >> directoy takes inside zope database. How can i find out that? > > If the objects are fileish content then you could write a script which > adds up their size (via the get_size method). This won't tell you > exactly home much space it takes up in the ZODB, but it will tell you > where most of the data is. Something like this, which I use, in a method called 'du', which I just call on various folder objects: <dtml-in "PARENTS[0].objectValues()"> <dtml-var id> <dtml-if title> (<dtml-var title>)</dtml-if> <dtml-try><dtml-var getSize> <dtml-except>no size reported </dtml-try> <br /> </dtml-in> - John Maxwell jmax(a)sfu.ca

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Returned mail: see transcript for details
by Mail Delivery Subsystem 28 Jan '04

28 Jan '04

The original message was received at Wed, 28 Jan 2004 19:18:19 +0200 (EET) from localhost.kture.kharkov.ua [127.0.0.1] ----- The following addresses had permanent fatal errors ----- <ius(a)kture.kharkov.ua.KAV> ----- Transcript of session follows ----- ius(a)kture.kharkov.ua... User unknown 550 5.1.1 <ius(a)kture.kharkov.ua.KAV>... User unknown

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File blocked - ScanMail for Lotus Notes-->Test (ScanMail has removed a file)
by Arlin_J_Curtis/London/NoHo.NOHO＠noho.co.uk 28 Jan '04

28 Jan '04

ScanMail has removed an attachment during a real-time scan of the email traffic. Date: 1/28/2004 16:24:10 Virus: Blocked; File: readme.exe From: zope(a)zope.org To: zope(a)zope.org; Action: Blocked; Scanned by ScanMail for Lotus Notes 2.5.0 with scanengine 6.150-1001 and patternfile lpt$vpn.747

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